Buggy code:
private static void init1 ( int index ) { } private static void init2 ( int index ) { } private static void init3 ( int index ) { } private static void init4 ( int index ) { } private static void init5 ( int index ) { } private static void init6 ( int index ) { } private static void init7 ( int index ) { } private static void init8 ( int index ) { List < String > list1 = new ArrayList < > ( ) ; List < String > list2 = new ArrayList < > ( ) ; List < String > list3 = new ArrayList < > ( ) ; List < String > list4 = new ArrayList < > ( ) ; List < String > list5 = new ArrayList < > ( ) ; List < String > list6 = new ArrayList < > ( ) ; List < String > list7 = new ArrayList < > ( ) ; List < String > list8 = new ArrayList < > ( ) ; List < String > list9 = new ArrayList < > ( ) ; List < String > list10 = new ArrayList < > ( ) ; List < String > list11 = new ArrayList < > ( ) ; List < String > list12 = new ArrayList < > ( ) ; list1 . add ( "ப" ) ; TamilLayout . tamilFontEntities [ index ] [ 0 ] = new TamilFontEntity ( list1 , index , 0 ) ; System . out . print ( ( ( TamilLayout . tamilFontEntities [ index ] [ 0 ] ) + "<seq2seq4repair_space>" ) ) ; list2 . add ( "ப" ) ; list2 . add ( "ா<seq2seq4repair_space>" ) ; TamilLayout . tamilFontEntities [ index ] [ 1 ] = new TamilFontEntity ( list2 , index , 1 ) ; System . out . print ( ( ( TamilLayout . tamilFontEntities [ index ] [ 1 ] ) + "<seq2seq4repair_space>" ) ) ; list3 . add ( "ப" ) ; list3 . add ( "ி<seq2seq4repair_space>" ) ; TamilLayout . tamilFontEntities [ index ] [ 2 ] = new TamilFontEntity ( list3 , index , 2 ) ; System . out . print ( ( ( TamilLayout . tamilFontEntities [ index ] [ 2 ] ) + "<seq2seq4repair_space>" ) ) ; list4 . add ( "ப" ) ; list4 . add ( "ீ<seq2seq4repair_space>" ) ; TamilLayout . tamilFontEntities [ index ] [ 3 ] = new TamilFontEntity ( list4 , index , 3 ) ; System . out . print ( ( ( TamilLayout . tamilFontEntities [ index ] [ 3 ] ) + "<seq2seq4repair_space>" ) ) ; list5 . add ( "ப" ) ; list5 . add ( "ு<seq2seq4repair_space>" ) ; TamilLayout . tamilFontEntities [ index ] [ 4 ] = new TamilFontEntity ( list5 , index , 4 ) ; System . out . print ( ( ( TamilLayout . tamilFontEntities [ index ] [ 4 ] ) + "<seq2seq4repair_space>" ) ) ; list6 . add ( "ப" ) ; list6 . add ( "ூ<seq2seq4repair_space>" ) ; TamilLayout . tamilFontEntities [ index ] [ 5 ] = new TamilFontEntity ( list6 , index , 5 ) ; System . out . print ( ( ( TamilLayout . tamilFontEntities [ index ] [ 5 ] ) + "<seq2seq4repair_space>" ) ) ; list7 . add ( "ப" ) ; list7 . add ( "ெ<seq2seq4repair_space>" ) ; TamilLayout . tamilFontEntities [ index ] [ 6 ] = new TamilFontEntity ( list7 , index , 6 ) ; System . out . print ( ( ( TamilLayout . tamilFontEntities [ index ] [ 6 ] ) + "<seq2seq4repair_space>" ) ) ; list8 . add ( "ப" ) ; list8 . add ( "ே<seq2seq4repair_space>" ) ; TamilLayout . tamilFontEntities [ index ] [ 7 ] = new TamilFontEntity ( list8 , index , 7 ) ; System . out . print ( ( ( TamilLayout . tamilFontEntities [ index ] [ 7 ] ) + "<seq2seq4repair_space>" ) ) ; <START_BUG> list9 . add ( "ற" ) ; <END_BUG> list9 . add ( "ை<seq2seq4repair_space>" ) ; TamilLayout . tamilFontEntities [ index ] [ 8 ] = new TamilFontEntity ( list9 , index , 8 ) ; System . out . print ( ( ( TamilLayout . tamilFontEntities [ index ] [ 8 ] ) + "<seq2seq4repair_space>" ) ) ; list10 . add ( "ப" ) ; list10 . add ( "ொ<seq2seq4repair_space>" ) ; TamilLayout . tamilFontEntities [ index ] [ 9 ] = new TamilFontEntity ( list10 , index , 9 ) ; System . out . print ( ( ( TamilLayout . tamilFontEntities [ index ] [ 9 ] ) + "<seq2seq4repair_space>" ) ) ; list11 . add ( "ப" ) ; list11 . add ( "ோ<seq2seq4repair_space>" ) ; TamilLayout . tamilFontEntities [ index ] [ 10 ] = new TamilFontEntity ( list11 , index , 10 ) ; System . out . print ( ( ( TamilLayout . tamilFontEntities [ index ] [ 10 ] ) + "<seq2seq4repair_space>" ) ) ; list12 . add ( "ப" ) ; list12 . add ( "ௌ<seq2seq4repair_space>" ) ; TamilLayout . tamilFontEntities [ index ] [ 11 ] = new TamilFontEntity ( list12 , index , 11 ) ; System . out . println ( TamilLayout . tamilFontEntities [ index ] [ 11 ] ) ; } private static void init9 ( int index ) { } private static void init10 ( int index ) { } private static void init11 ( int index ) { } private static void init12 ( int index ) { } private static void init13 ( int index ) { } private static void init14 ( int index ) { } private static void init15 ( int index ) { } private static void init16 ( int index ) { } private static void init17 ( int index ) { }

Fix:
list9 . add ( "ப" ) ;